I claim:
1. A method for creating unique image passwords utilizing a separate keypad in conjunction with a universal computer system, to secure and gain access to a computer system comprised of a computer having a CPU, memory means, non-volatile memory storage, keyboard removable storage means, keypad with removable storage means and memory means, software for creating graphical images, and said system having a monitor capable of displaying graphics, said method comprised of the steps of:
a. Installing a computer residing program for controlling access to the computer so as to allow the computer to be disabled or enabled in response to a directive;
b. Creating the computer password digitized image utilizing the computer graphics program;
c. Storing said computer password digitized image in the keypad memory means;
d. Assigning the respective image password to a key on the keypad;
e. Storing the said computer digitized image on keypad removable storage means;
f. Inserting the keypad removable storage means when desired to operate the computer;
g. Inputting the numeric unique sequence code through the keypad;
h. Reading the image on the keypad removable storage means and comparing the image stored for a match, and comparing the unique numeric password with the stored numeric sequence associated with the respective graphic image, and granting access to the computer if a match is determined.
2. A method for creating unique image passwords utilizing a separate keypad in conjunction with a universal computer system, to secure and gain access to a computer system comprised of a computer having a CPU, memory means, non-volatile memory storage, keyboard removable storage means, keypad with removable storage means and memory means, software for creating graphical images, and said system having a monitor capable of displaying graphics, said method comprised of the steps of:
a. Installing a computer residing program for controlling access to the computer so as to allow the computer to be disabled or enabled in response to a directive;
b. Creating the computer password digitized image utilizing the computer graphics program;
c. Storing said computer password digitized image in the keypad memory means;
d. Storing in the keypad memory means a unique numerical sequence code for recalling the digitized image password;
e. Storing the said computer digitized image on keypad removable storage means;
f. Inserting the keypad removable storage means when desired to operate the computer;
g. Inputting the numeric unique sequence code through the keypad;
h. Reading the image on the keypad removable storage means and comparing the image stored for a match, and comparing the unique numeric password with the stored numeric sequence associated with the respective graphic image, and granting access to the computer if a match is determined.
3. A method for creating unique image passwords utilizing a separate keypad in conjunction with a universal computer system, to secure and gain access to a computer system comprised of a computer having a CPU, memory means, non-volatile memory storage, keyboard removable storage means, keypad with removable storage means and memory means, software for creating graphical images, and said system having a monitor capable of displaying graphics, said method comprised of the steps of:
a. Installing a computer residing program for controlling access to the computer so as to allow the computer to be disabled or enabled in response to a directive;
b. Creating the computer password digitized image utilizing the computer graphics program;
c. Storing said computer password digitized image in the computer memory means and in the keypad memory means;
d. Storing in the computer removable storage means the computer digitized image, and storing the digitized image on the keypad removable storage means;
e. Storing in the computer memory means and the keypad memory means a numerical sequence code for recalling the digitized image password;
f. Inserting the keypad removable storage means into the keypad, when desiring to operate the computer, and inserting the removable storage means having thereon the computer digitized image password, and inputting into the keypad the respective numerical sequence code associated with the digitized image password;
g. The digitized image stored in the computer memory means with the digitized images on the keypad removable storage means and computer removable storage means for a match, and if a match is obtained, comparing the unique numeric password entered on the keypad to determine if a match exists for the respective computer digitized password just matched, and granting access to the computer if a match is determined.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A circuit for supplying a constant voltage to electrical loads connected to an output terminal thereof, the circuit comprising:
an output transistor, an emitter of which is connected to the output terminal;
a reference voltage supplying circuit for supplying a reference voltage to a base of the output transistor, the reference voltage supplying circuit being composed of a reference voltage generating element and a diode, both connected in series;
a voltage detecting circuit for detecting a voltage between the base and the emitter of the output transistor; and
a current-outputting circuit for supplying a current to the reference voltage supplying circuit, the current being determined based on the voltage detected by the voltage detecting circuit.
2. The circuit as in claim 1, wherein:
the voltage detecting circuit is composed of a voltage detecting transistor, an emitter of which is connected to the emitter of the output transistor, and a base of which is connected to the base of the output transistor; and
the current-outputting circuit is composed of a current-mirror circuit to which the current flowing through the voltage detecting transistor is supplied.
3. A circuit for supplying a constant voltage to electrical loads connected to an output terminal thereof, the circuit comprising:
an output transistor, an emitter of which is connected to the output terminal;
a reference voltage supplying circuit for supplying a reference voltage to a base of the output transistor, the reference voltage supplying circuit being composed of a reference voltage generating element and a diode, both connected in series;
a current detecting circuit for detecting a collector current of the output transistor; and
a current-outputting circuit for supplying a current to the reference voltage supplying circuit, the current being determined based on the current detected by the current detecting circuit.
4. The circuit as in claim 3, wherein:
the current detecting circuit is composed of a current detecting transistor, an emitter of which is connected to the emitter of the output transistor, and a base of which is connected to the base of the output transistor; and
the current-outputting circuit is composed of a current-mirror circuit to which the current flowing through the current detecting transistor is supplied.
5. The circuit as in any one of claims 1\u20134, further comprising a constant current supplying circuit for supplying a constant current only to the reference voltage generating element.
6. The circuit as in claim 5, further comprising a starting-up circuit for supplying a base current to the output transistor according to the reference voltage generated by the reference voltage generating element.
7. The circuit as in claim 6, further comprising a load through which a predetermined amount of current flows, the load being connected between the output terminal and the ground.
8. The circuit as in any one of claims 1\u20134, further comprising a load through which a predetermined amount of current flows, the load being connected between the output terminal and the ground.
9. The circuit as in any one of claims 1\u20134, the diode in the reference voltage supplying circuit is a diode-connected transistor having the same characteristics as the output transistor.
10. The circuit as in any one of claims 1\u20134, the reference voltage generating element is a Zener diode.
11. The circuit as in any one of claims 1\u20134, the reference voltage generating element is a band-gap reference voltage generating element.